A high-speed and precise current sensing circuit with bulk control (CCB) technique
- Resource Type
- Conference
- Authors
- Chi-Lin Chen; Wei-Lun Hsieh; Wei-Jen Lai; Ke-Horng Chen; Ching-Sung Wang
- Source
- 2008 15th IEEE International Conference on Electronics, Circuits and Systems Electronics, Circuits and Systems, 2008. ICECS 2008. 15th IEEE International Conference on. :283-287 Aug, 2008
- Subject
- Components, Circuits, Devices and Systems
Mirrors
MOSFET circuits
Power MOSFET
Design methodology
Pulse width modulation converters
Bandwidth
Switching circuits
Communication system control
Personal digital assistants
Switching converters
- Language
A new current sensing circuit with bulk control (CCB) technique is presented in this paper. Compared to several current sensing techniques, there is a trade-off between the sensing accuracy and speed. Thus, the proposed CCB technique can achieve high-speed current sensing without sacrificing much sensing accuracy owing to the improved large loop gain of bulk control and current mirror based technique. Simulation results demonstrate the verification of the design methodology in the current sensing designs.